The external appearances and SEM images of the cured alicyclic epoxy resin unmodified and modified by the fluorinated copolymer (CEA/PFHE) are shown in Fig.
The temperature dependence plots of the dynamic mechanical properties of the alicyclic epoxy resin unmodified and modified with the fluorinated copolymer are shown in Fig.
It was shown that the aliphatic and alicyclic
oil hydrocarbons content in bottom sediments reduced in the course of the experiment from 53, 3[+ or -]7, 46 g/kg to 2, 2[+ or -]0, 39 g/kg.
The pure polyimides, poly(DOCDA-ODA), poly(-DOCDA-p-BAPS), poly(BOCA-ODA), and poly(BOCA-p-BAPS), were obtained from the alicyclic
dianhydrides, DOCDA or BOCA, and two aromatic diamines, ODA and p-BAPS, by a two-step polycondensation reaction.
Alkylated phenolic structures, mainly alkylresorcinols and condensed alicyclic
rings connected by aliphatic chains, underlie the molecular model of kukersite kerogen elaborated in  on the basis of spectroscopic investigations.
of polyimides based on aromatic and alicyclic
With increasing temperature, bonds with higher energies will gradually be ruptured needing higher activation energies, such as the rupture of side chains in [beta]-site aromatics, decomposition of normal alkenes of large molecular mass, Diels-Alder cyclation reaction and the decomposition of alicyclic
hydrocarbons [16, 17].
These high values of both microstructural parameters relating to these BODA-based polyimides can be attributed to the alicyclic
structure, which induces steric hindrance for chain packing.
sup-1]), methylene [MATHEMATICAL EXPRESSION NOT REPRODUCIBLE IN ASCII] and alicyclic
groups at 1465 and 2940 [cm.
Several types of amine curing agents, such as aliphatic, alicyclic
, and aromatic amines, are used in combination with DGEBA oligomers in various applications (1).
7] combined the methods of UV-, IR-, NMR H and 13C spectroscopy and showed that in shale oil fraction 300-320 [degrees]C aromatic ketones are not prevalent, and ketones are represented mostly by alicyclic
ketones and alkanones.
Tetralin [Mathematical Expression Omitted] and fractions of paraffin oils (mixture of paraffin hydrocarbons, aromatic and alicyclic
hydrocarbons) were used as solvents.